Logwatch issue

HI,

i have 2 questions about the logwatch e-mails i receive every day.

1) Is it possible to reduce the Detail Level of Output (actually to 0) to avoid receiving a 500Kb email.

2) This large email is partially unreadable. The begining is in text mode but the end is totally black (look at a screen copy). The only mean i have to read it is to print it i look at the print preview that is correct.
In fact, works fine under ie, but display like this under firefox 1.5